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What is two-step verification?

Two-step verification (2SV, also known as two-factor authentication) adds security by requiring an extra step when you log in or try to edit sensitive information like your password. We support several 2SV methods as described next:

Security level 2SV method How it works What to watch out for...
Good SMS text message On login, to access your account we'll text you a 6-digit code you must enter. If you can't receive the code (for example, you lost your phone or changed your number) you can't log in.
Better Authenticator app, like Google Authenticator or Authy, on your phone or other device On login, to access your account you must enter the code that the app shows you. If you don't have access to the app (lost your phone, etc.), then you can't login.
Best Hardware security key, such as a Yubikey or Google Titan On login, to access your account you must insert the hardware key, and the key verifies your identity. If you lose the key and your backup method doesn't work, you can't log in.

Always set a backup 2SV method

To minimize the hassle when something goes wrong (for example, you lost your phone), be sure you set a backup 2SV method (a backup is required if you're using a hardware key). After you enable 2SV, you can set a backup anytime.

Note: For best results, set your backup on a different device - for example, if SMS on your phone is your main 2SV, set an authenticator app on your laptop as your backup 2SV.

About high-risk transactions

By default, you set up 2SV as a requirement for every login. Instead, you can set up 2SV so you only need it for high-risk transactions like changing your account password or PIN or transferring a domain. If you frequently log in to your account but rarely need a high-risk transaction, this could be a better fit for you.

More info

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